﻿/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
namespace Sys.Workflow.Engine.Impl.Json
{
    using Newtonsoft.Json;
    using Newtonsoft.Json.Linq;
    using System.IO;

    /// 
    public abstract class JsonObjectConverter<T>
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="object"></param>
        /// <param name="writer"></param>
        public virtual void ToJson(T @object, StreamWriter writer)
        {
            writer.Write(ToJson(@object));
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="object"></param>
        /// <returns></returns>
        public virtual string ToJson(T @object)
        {
            if (@object is null)
            {
                return "";
            }

            return ToJsonObject(@object).ToString();
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="object"></param>
        /// <param name="indentFactor"></param>
        /// <returns></returns>
        public virtual string ToJson(T @object, int indentFactor)
        {
            if (@object is null)
            {
                return "";
            }

            return JToken.FromObject(@object).ToString(Formatting.Indented);
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="object"></param>
        /// <returns></returns>
        public abstract JToken ToJsonObject(T @object);
        /// <summary>
        /// 
        /// </summary>
        /// <param name="reader"></param>
        /// <returns></returns>
        public abstract T ToObject(StreamReader reader);
    }

}